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Canon RF 800mm f/11 IS STM : Specifications and Opinions

The Canon RF 800mm f/11 IS STM is a supertele lens for FF and APS-C, manufactured from 2020. The focus is done by Stepper Motor, it has image stabilization. The average price, when it has been added to the JuzaPhoto database, is 1065 €;

61 users have given it an average vote of 8.4 out of 10.

MOUNT

This lens is available with the following mounts:

Canon RF: this lens is compatible with mirrorless fullframe and APS-C Canon RF.

Specifications
Focal lenght	800 mm
Angle of view	3.1°
Format	FF, APS-C
Max. aperture	f/11
Aperture blades
Lenses/Groups	11 elements in 8 groups
Min. focus distance	6 meters
Reproduction ratio	0.14x
Features
Stabilization	Yes (built in lens)
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	Yes
Filters	95 mm
Lens hood	Yes (not supplied)
Weather sealing	No
Weight	1260 g
Dimensions	101 x 281 mm
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Reviews

What do you think about this lens?

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The following opinions have been automatically translated with Google Translate.

Wildlifeph

sent on January 22, 2026

Pros: Lightness; sharpness and contrast; handling; Small size for transport.

Cons: F11; Extendable and non-tropicalized take a risk with dust

Opinion: Excellent lens beyond all expectations. It requires a lot of light to fully appreciate it. Very saturated colors and very good sharpness in the center. Really light and easy to handle; Quiet and good stabilization. Once shortened, it slips into bags, even if they are not capacious. Fairly fast focusing. Ultimately a must have, excellent on both FF and APSC

Angelo Nardo

sent on December 07, 2025

Pros: Weight, portability, focus, sharpness.

Cons: f.11, minimum focusing distance.

Opinion: I express my opinion after intense use with the R7, for 3 years, for photos mainly of birds. The lens is very appreciated for its lightness and compactness, when closed, an excellent travel companion and specific for photos of distant subjects. In fact, it is a specialized lens and requires excellent knowledge and practicality of the instrument as, given its considerable magnification ratio, it must be used with appropriate precautions, especially evaluating the quality of air and light. Under the right conditions this lens returns sharp images and the stabilizer works very well. I also took photos with times of 1/250 freehand. If the subjects are close the images are always sharp but, if they are far away and the light conditions and the quality of the area are not good it is easy to take poor photos. This is due to a physical factor and does not depend on the quality of the lens. It also works well with the RF 1.4 extender with an obvious drop in quality, albeit minimal. In conclusion, if you are looking for an 800mm. which costs little, there are no alternatives, but which nevertheless allows you to shoot well and bring good results home. In my portfolio you can appreciate some images.

Francesco S.

sent on January 09, 2025

Pros: Featherweight, easy handling, sharpness, 800mm

Cons: Minimum focusing distance, in continuous AF is not a splinter

Opinion: For the quality of both the lens and the material I would say excellent lens that, given the weight, never tires of carrying it around, encourages wandering hunting, really comfortable like no other considering that you get to 800mm! Well done. The mm is never enough, and with this, a daytime lens we can satisfy many needs, while with little light, on the latest generation Canon copies with fast and precise af, a beautiful iso hold, there are no particular problems, indeed, given the price, nothing to say, it is fine.

Pgatto

sent on July 28, 2024

Pros: 800mm, weight, sharpness, AF.

Cons: Rather than "against", it would be appropriate to consider them for what they really are, that is, "characteristics" of this lens.

Opinion: After a couple of months of almost exclusive use and a few thousand shots taken with R6 and R7, I try to have my say on this lens. Premise: if I had to base the purchase on what I read, especially on the opinions of those who don't have it, or have "tried it for half a day" (a classic now of any forum/site/group/etc), surely I would have avoided it like the plague... But since I'm curious and I like to "try it to believe it", as soon as I found a practically new one, with a lens hood (mandatory!) at the cost I had set myself to spend on a lens that I would have used little, I bought it and I passed the tantrum. The weight is the first positive feature that you notice as soon as you handle it and mount it does not unbalance at all. The autofocus is fast and precise, as well as the stabilizer (was I lucky?), I took bursts of up to 10 frames of birds in flight, all in focus, once locked the subject does not lose it and the results are sharp, detailed photos (as much as photos of subjects often many tens of meters away can be so the environmental conditions etc must be considered, and this applies to any lens...). The "problem" is obviously being able to frame the subject, but do we want to consider it a "defect" of the lens? It is an 800, an "extreme" lens, difficult to use and as such requires at least hundreds of "wrong shots" before understanding how and in what context it should be used, plus it is wrong to compare it with other "apparently" similar lenses (150-600 for everyone), personally I have 2 100-400 (EF II and RF) and with the 800 they have nothing to do ... At most it can be compared to the 800 f/5.6 which costs 10 times as much, but it would be like comparing the usual good Panda with the usual Ferrari (although, looking at the few photos available here in the "galleries", paradoxically it doesn't seem to me that the comparison is ungenerous for him...). As mentioned, I used it on both R6 and R7, walking with the 800 "physically" does not tire, but you have to go out aware that you need to "look from 6 meters onwards", and possibly on days of full sun (but even in this case, R6 and R7 make up very well for the limit imposed by the f/11 and then, for those who have them, the various SW with AI take care of the rest). So, if you think of going out with the 800 as a replacement, for example, for a 100-400, to shoot both distant subjects and butterflies or insects, better to avoid, it is not his job, but do we want to blame him? A "note" for R6 owners: be careful because on the R6 (at least on mine) just mounted it had great difficulty focusing (while on the R7 it was perfect, so I immediately ruled out lens problems), but I had not updated the firmware of the R6 (I still had Ver.1.8.3): updated to 1.8.4, problem solved! (too bad that Canon, in the release document, does not mention this "thing" and who knows how many others...). I didn't notice any big differences between the two configurations, apart of course from having to shoot with much "shorter" shutter speeds with R7 but even in this case, do we want to "blame" the lens? For the rest, with all the limitations that I recognize myself as a "simple avifauna enthusiast", I prefer to let the results obtained in the gallery I dedicated to the 800 f/11 speak for themselves. In conclusion, despite the fact that here some "serial commentators" even claimed that "it should not even have been born", evidently in Canon they do not read forums and this honest, extreme, difficult, controversial lens is there and in my opinion it does its job very well. A "defect", at least in my case, since I normally shoot sports/theater? Sooner or later, like all "extreme" lenses, it will end up in the closet or be resold, but certainly not through its "fault".

Perinot Antonio

sent on June 30, 2023

Pros: Lightweight, easy handling, perfectly balanced when extended with R7.

Cons: Difficult to hit the lens for the very narrow angle, about 2 ° on Aps-c, but it is an 800mm not a 50mm.

Opinion: I took it recently and I did tests with different settings, but I have to complete even if I found two good settings that I stored in C1 and C2. It is a 1280mm equivalent and therefore at 8 meters frames 15 x 20 cm, at 100 m a whole person. At 6 m, minimum distance of MAF is great for following insects in flight such as butterflies, for bees my problem (I am short-sighted) is to find the insect 6 m away, easy with some butterflies, much less with bees. Obviously it is a lens to be used a lot to get our hands on, surely it is difficult to follow birds in flight for the very narrow angle, you have to practice. The quality of the file seems good to me, see the photos I posted on Juza, certainly not comparable to the 800 f / 5.6 from 20K €, but it cost me 880 € with two years warranty! And it weighs only 1200g, with the R7 weighs exactly 2 kg, you can carry it for hours without getting tired even for the excellent balance, the center of gravity with R7 is exactly on the tripod attack. I would have liked a swivel attachment. I immediately took the hood, € 27 with shipping, necessary to protect the front lens and side lights. Examples of photos of the much-mistreated pair R7 + 800 in my dedicated gallery, I appreciate observations and criticisms. Thank you.

There are 14 more reviews. Show all »

Photos taken with Canon RF 800mm f/11 IS STM

Inseparable Sleepers (Northern Screech-Owl)

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50 comments, 7429 views

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52 comments, 6024 views

HI RES 4.1 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

But how cold is Poiana at minus 14 large

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HI RES 5.2 MP

Air combat

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HI RES 3.8 MP

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28 comments, 1880 views

HI RES 5.5 MP

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Male oriole

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33 comments, 1599 views

HI RES 4.2 MP

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27 comments, 2998 views

HI RES 6.0 MP

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32 comments, 3381 views

HI RES 6.0 MP

Mountain bike

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HI RES 10.4 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

Sardinian warbler

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HI RES 6.0 MP

Stiff neck, dance of love

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HI RES 6.0 MP

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HI RES 6.0 MP

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HI RES 4.9 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

Robin

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HI RES 11.5 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

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HI RES 6.0 MP

Red heron half bust

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26 comments, 3066 views

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30 comments, 2614 views

HI RES 3.8 MP

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27 comments, 1422 views

HI RES 6.0 MP

Linnet.

by Vincenzo Sciumè
22 comments, 1043 views

HI RES 6.0 MP

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33 comments, 1873 views

HI RES 9.0 MP

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by Vincenzo Sciumè
33 comments, 640 views

HI RES 6.0 MP

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Untitled Photo

by Vincenzo Sciumè
25 comments, 1443 views

HI RES 6.0 MP

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33 comments, 730 views

HI RES 6.0 MP

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HI RES 4.9 MP

Untitled Photo

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HI RES 6.0 MP

Untitled Photo

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21 comments, 1703 views

HI RES 3.8 MP

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Lenses » Lenses Canon » Canon RF 800mm f/11 IS STM

Canon RF 800mm f/11 IS STM : Specifications and Opinions

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Reviews

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Photos taken with Canon RF 800mm f/11 IS STM